DK128788A - Kodning til beskyttelse mod piratkopiering og audio- og videosignaler - Google Patents

Kodning til beskyttelse mod piratkopiering og audio- og videosignaler

Info

Publication number
DK128788A
DK128788A DK128788A DK128788A DK128788A DK 128788 A DK128788 A DK 128788A DK 128788 A DK128788 A DK 128788A DK 128788 A DK128788 A DK 128788A DK 128788 A DK128788 A DK 128788A
Authority
DK
Denmark
Prior art keywords
coding
audio
video signals
protection against
against pirate
Prior art date
Application number
DK128788A
Other languages
English (en)
Other versions
DK128788D0 (da
Inventor
Franz-Juergen Hormann
Original Assignee
Hormann Franz Juergen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hormann Franz Juergen filed Critical Hormann Franz Juergen
Publication of DK128788D0 publication Critical patent/DK128788D0/da
Publication of DK128788A publication Critical patent/DK128788A/da

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • G11B20/00123—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
DK128788A 1987-03-10 1988-03-09 Kodning til beskyttelse mod piratkopiering og audio- og videosignaler DK128788A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873707608 DE3707608A1 (de) 1987-03-10 1987-03-10 Kodier-verfahren gegen video und audio-raubpiraterie

Publications (2)

Publication Number Publication Date
DK128788D0 DK128788D0 (da) 1988-03-09
DK128788A true DK128788A (da) 1988-09-11

Family

ID=6322659

Family Applications (1)

Application Number Title Priority Date Filing Date
DK128788A DK128788A (da) 1987-03-10 1988-03-09 Kodning til beskyttelse mod piratkopiering og audio- og videosignaler

Country Status (2)

Country Link
DE (1) DE3707608A1 (da)
DK (1) DK128788A (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1258475B (it) * 1992-09-04 1996-02-26 Procedimento per l'identificazione di pellicole cinematografiche, matrici di videocassette
EP1496516B1 (de) * 2003-07-11 2006-09-27 Gerhard Lehmann Kennzeichnung eines Trägermaterials für zur Wiedergabe bestimmte Informationen
US7187633B2 (en) * 2003-07-11 2007-03-06 Gerhard Lehmann Marking of a data medium material for information intended for reproduction
US7403708B2 (en) 2003-11-04 2008-07-22 Eastman Kodak Company Tracking an image-recording medium using an identifying mark and film encodement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040099A (en) * 1975-07-30 1977-08-02 Cook Laboratories, Inc. Method and apparatus for preparing recorded program material to render detectable unauthorized magnetic tape duplications, and method and apparatus for detecting such duplications
GB2104701B (en) * 1981-08-06 1985-06-05 James Bertram King Method and apparatus for preventing unauthorised recording of source material (eg, a gramophone recording)
FR2534433B1 (fr) * 1982-10-08 1986-04-11 Thomson Csf Procede de protection d'une sequence d'images video contre une utilisation frauduleuse et dispositifs pour la mise en oeuvre de ce procede
WO1985002293A1 (fr) * 1983-11-21 1985-05-23 Haute Securite Video Hsv S.A. Procede et dispositif anti-piraterie pour supports d'images cinematographiques et video

Also Published As

Publication number Publication date
DE3707608A1 (de) 1988-09-22
DK128788D0 (da) 1988-03-09

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment